Cheap flights from London Heathrow Airport to Houston from $436

The month of November is, on average, the cheapest month to fly to Houston from London Heathrow Airport, with most prices found around $855. The month of September is another great option to travel to Houston, with average flight prices from London Heathrow Airport averaging around $875.

Our data shows that the cheapest London Heathrow Airport to Houston flights are usually those with departure times at noon. Our users have found flights to Houston at noon for as low as $965. Try not to purchase tickets in the morning because they tend to be around $1,004. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from London Heathrow to Houston George Bush Intcntl for the best London Heathrow - Houston flight prices

You are more likely to see cheaper flights to Houston from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston for around $1,002 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston from London Heathrow Airport for as low as $875 on momondo.

JetBlue, British Airways, and Delta are the most popular carriers operating from London Heathrow to Houston

British Airways, United Airlines and American Airlines are the top three most popular airlines that fly to Houston from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Houston. Keep in mind that there are 5 different airlines that fly to Houston on a routine basis, so you have a few additional options to choose from.

Historically, on average around 13% of flights between London and Houston have experienced a delay on any given week. The average delay length over the past 12 months has been 152 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

As of March 2026, 19 flights take off from London Heathrow Airport and land in Houston each day. The most common flight departure time for this route is 10:00AM, with 54% of daily flights taking off at noon.

As of March 2026, 135 flights take off from London Heathrow Airport and land in Houston each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.